Question on performance bottleneck / FPS monitoring

Hi all,

I have a question regarding the performance of MSFS2024 on PC. Overall, I'm satisfied with the performance I'm getting (around 70fps), and the level of detail is fine with me — although less "popping in" of terrain details would be nice. Occasionally I get a kind of "stutter" in my fps. This happens especially during take-off and landing, but during the test flight I just did, I also experienced it while turning inside a cloud.

It should also be noted that I see the effect far more often in airliners compared to GA planes like a Cessna.

With the debug tools FPS monitor I obtained the following example.

1. full scence

Full Scene

As you can see, I'm playing on an ultrawide 49inch screen

2. focus on fps monitor

FPS monitor

Now, this is the first time I have enabled this. But the red markings in the FPS graph are exactly when I get the "stutter". From what I read there, I'm "Main Thread" bound, which means CPU I guess.

3. Resource Monitor

Resource Monitor

At the same time however, the CPU does not look particularly busy. I do admit though I did forget to look at every single one of the cores.

Some comments on my hardware: I'm using a Geforce 4080, CPU is an i9-12900KF @ 3.2GHz and 32GB of RAM.

Is this effect known to anyone? And what are measures I could take to reduce this and/or further investigate it?